Improvement in pocket-inhalers



W. R. CRUMB. Pocketv-lnhalers.

N0.151,570. Patented1une2,874.

vtus provided with my improvement.

UNITED STATES PATENT Ori-TCE9 VILLIAM It. ORUMB, OF BUFFALO, NEV YORK.

IMPROVEMENT IN POCKETINHALERS.

Specification forming part of Letters Patent No. 151,570, dated June 2, 1874; application filed January 12, 1874.

I uary, 1873.

In the accompanying drawing, Figure 1 is a sectional elevation of an inhaling appara- Fig. 2 is a horizontal section in line :v x, Fig. 1. Fig. 3 is a detached view of the removable receptacle. Fig. 4 is a plan view, and Fig. 5

an elevation, of a modified form of my improved receptacle.

Like letters of reference designate like parts in each of the gures.

Ais a flat or oval case, provided with a central bore or passage, c, extending nearly through the case, and communicating, at its end, with two similar passages, c c', on either side, the outer ends of which are provided with nozzles d d, arranged and adapted to lit in the nostrils or two passages of the nosethe air in using the instrument entering` the mouth of the central passage, and passing thence to the nostrils through the side passages in an obvious manner.

This arrangement of the air-tubes and nozzles is similar to that shown and described in my former Letters Patent above referred to, by which a most compact instrument for inhaling in both nostrils at the same time is produced.

These instruments have heretofore been used by inserting in the central passage c some porous material saturated with the medicinal liquid, which results in an unequal charging with the vapors of the air inhaled, the strength of the vapors rapidly diminishing as the instrument is used, unless the packing material is frequently resaturated, which involves more or less inconvenience, besides the necessity of carrying a separate vial of the liquid, which is liable to get lost or broken.

These difficulties I obviate by fitting looselyr in the air-tube a small receptacle, E, of cylindrical or other suitable shape, containing the medicated preparation.

rThis reservoir may be made of metal, glass, rubber, wood, or other suitable material, in which the substance can be secured. I prefer to make this reservoir of wood, in the shape of a small hollow cylinder provided with minute perforations, that will expose the liquid to the action of the air as it is iuhaled, while they will prevent the escape of the liquid, except as it is absorbed by the air.

This cylinder may be provided with a few I larger perforations, e, only near the open end, so as to be closed by the cork or stopper when inserted in the end of the cylinder, and be opened when' the stopper is partially withdrawn, so as to permit the escape ofthe required quantity of the liquid without requiring the eutire withdrawal of the cork, whereby the instrument can be readily charged without danger of spilling, or of overcharging the tube. Should the tube be so overcharged as to cause a drop of the liquid instead of the vapor thereof to be drawn into the nasal passages, the most unpleasant il' not dangerous results would ensue.

I prefer to iiute or corrugate the outer surface of the reservoir, so as to increase the surface exposed to the air, as the liquid, whether allowed to esca-pe through the tine perforations or intermittently through larger ones, will diffuse itself over the outer surface. The reservoir being ot' less size than the airtube, any suitable packing material, as a strip of paper or cloth, may be wound around the reservoir.

By providing the ends of the reservoir with lugs f, the reservoir will be kept in such a position as to leave an equal lannular space around it for the passage of the air.

YVhen it is desired to use a solid or plastic substance, the ends of the reservoir can be left open, or partially so, and the size of the Vperforations varied accordingly, so as to permit access ot' the air thereto.

When not required for use the nozzles and mouth of the air-tube are closed by suitable Stoppers i i', secured by a string, as shown in the drawings.

VVhzit I claim es my invention is- 3. The removable reservoir E,p1ovded with 1. In combination with the air-tube c, the perforations e, combined with the stopper fi', externally corrugated reservoir E inelosed as and for the purpose set forth. therein, als and for the purpose set forth. WVM. R. GRUMB.

2. The reservoir E, externally corrugated Wlitnesses: for increasing the surface, and perforated, as JNO. J BONNER, and for the purpose set forth. EDWARD WILHELM. l 

